Medical wastes consist of pharmaceuticals, antibiotics, microbes and pathogens, excreta and other fluids secreted by patients, blood and other biological and anatomical products from surgery, shower water, laundry releases, and disposable solids. All of these discharges pose a potential risk detrimental to the Wastewater Treatment Plant’s operations.
Swimming pool water contains a range of treatment products such as chlorine, salt, acid, and filtration media (sand, diatomaceous earth). In addition, the water contains dirt particles (sediments), wind-blown materials such as leaves and lawn cuttings, as well as body oils, sunscreen residues and potentially harmful bacteria. In areas connected to the sewerage system, backwash water from all swimming pools can be directed to a sewerage drainage point. New swimming pools should be permanently connected to the sewer at the time of installation or construction.
Class I Trade Waste Devices:
All Class 1 devices require cleaning based off the Manufacturers Recommendations. (Stated on Trade Waste permit).
- Dry basket arrestor
- Bottle Trap Separator
- Plaster Arrestor
- Silver Recovery Unit
- Sand Filters - Commercial swimming pools
- Settleable Solids Arrestor
An Assessment is the initial investigation that is carried out by Water Services to determine a Frequency for new businesses. Water Services review the working volume, the type and amount of discharge a Trade Waste device is processing to determine the approximate amount of time the device will reach capacity and exceed the effective working criteria (Frequency).
You must adhere to the pump-out frequency nominated for your Trade Waste Device which is stated on your Trade Waste Permit. If the volume or nature of your business evolves, then you must contact Water Services to request a reassessment. (See: ‘Reassessing your Frequency’).
You may request for us to undertake a Reassessment of your Trade Waste frequency due to:
This could be a onetime request by a business as, for example, for some reason business has dropped off for a two week period, therefore the device will not have reached capacity.
- Change of Ownership (See Assessments)
- Increase or decrease in volume of contaminants produced
- Changes in the volume of service/customers
- Upgrades or changes to the Trade Waste device
- Change in what services are being provided on site
Otherwise a series of assessments is completed to determine a new period the device exceeds the discharge criteria because it is being maintained at a higher level by the business.
Note: Frequency reassessments are free of charge as it is included in the annual trade waste fee. These can be requested at any point in time by a business if you believe your device has not reached capacity by the next service date.
Reasons the City may change your frequency:
- Service frequency is not being followed
- Contaminants have been detected in the sewer line close to your business and the city needs to investigate where the source has come from
- Damage has been reported to the city in regards to your Trade Waste device
If you plan to cancel your Trade Waste Permit and/or shut down your Trade Waste device, you need to let us know before doing so. If you are not the property owner, you will need to provide written permission from the owner to disconnect the fixture.
A licensed plumber will have to come to remove the fixture, bridge the fixture or re-route your wastewater lines to bypass the fixture.
If a fixture, such as a Grease Arrestor or dilution pit, is shut down but left in place, it must first be cleaned and pumped out by a licensed liquid waste contractor. You then must provide the final pump out docket from the contractor to Water Services by emailing a copy to firstname.lastname@example.org